EasyManua.ls Logo

Craftsman 921.166370 - Troubleshooting Guide

Craftsman 921.166370
20 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
Troubleshooting Guide
The air compressor should be turned off and unplugged from the power source before any maintenance
is performed as welt as the air bled from the tank and the unit allowed time to cool. Personal injuries
could occur from moving parts, electrical sources, compressed air, or hot surfaces.
PROBLEM POSSIBLE CORRECTION
Air leaks at the check valve A defective check valve results in a constant air leak at the pressure relief valve
or at the pressure relief valve., when there is pressure in the tank and the compressor is shut off. Drain the tank,
then remove and clean or replace the check valve_
Be sure of proper torque on head bolts, If leak remains, contact a service technician..
Operate the safety valve manually by pulling on the ring. if the valve continues to
leak when in the closed position,it shouldbe replaced,.
If there is an excessive amount of pressure drop when the accessory is used,
replace the regulator,
NOTE:
Adjust the regulated pressure under flow conditions (while accessory isbeing used)..
It is normal for the gauge to show minimal pressure loss during initial use of the
tool
Excessive tank pressure. Move the Auto-On/Off 1everto the Off position.. If the unit doesn't shut off, unplug it
from the power source and contact a service technician.
, ,,, J, ................ :
Motor will not starL Make sure power cord is plugged in and the switch is on, Inspect for the proper size
fuse in your circuit box., If the fuse was tripped, reset it and restart the unit,, If
repeated tripping occurs, replace the check valve or contact a service technician_
Remove the water in the tank by draining after each use. High humidity
environments wig cause excessive condensation. Utilize water filters on your air
line,
NOTE;
Water condensation is not caused by compressor malfunction.. Be sure the
compressor's air output is greater than your tool's air consumption rate.
Air leaks from the tank body Never drill into, weld or otherwise modify the air tank or it will weaken. The tank can
or tank welds, rupture or explode. Compressor cannot be repaired. Discontinue use of the air
compressor.
Air leaks between head and
cylinder°
Air teak from safety valve.
, , ,,,,
Pressure reading on the
regulated pressure gauge
drops when an accessory is
used.
Excessive moisture in the
discharge air.

Related product manuals